News

The evolution of thin-film photovoltaic manufacturing increasingly relies on advanced laser processing technologies. Among these, ultrafast lasers, particularly picosecond and femtosecond systems, have emerged as transformative tools for structuring and optimizing solar cells based on materials like CIGS (Copper Indium Gallium Selenide) and perovskite. Their unique ability to deliver extreme precision with minimal thermal impact addresses critical challenges in processing these often-sensitive materials, directly contributing to enhanced device performance and longevity.

A major hurdle for perovskite solar cells has been the sensitivity of the materials to ambient air during manufacturing, which typically requires energy-intensive, inert-gas environments. A groundbreaking solution comes from Nanchang University, where researchers developed a novel "laser annealing" technique.

The global PV market is entering a quality‑first, system‑value era: growth is broadening across regions, technologies are differentiating by efficiency and aesthetics, and the industry is consolidating around higher standards and smarter manufacturing. For Lecheng, aligning product roadmaps with these structural trends—especially in high‑efficiency cell and module testing—can unlock sustained share gains and long‑term customer value in both established and emerging markets.

In the manufacturing of thin-film solar cells, such as perovskite cells, laser scribing (P1, P2, P3) and edge cleaning (P4) are critical processes that directly impact cell efficiency and production yield. Multi-beam synchronous processing technology stands as a pivotal innovation for enhancing manufacturing efficiency. LeCheng Intelligent, a leader in this field, achieves high-precision, high-throughput processing of large-area panels through advanced optical design, sophisticated motion control, and deep process integration.

The rapid expansion of the Internet of Things (IoT) has created an urgent need for sustainable power sources for wireless sensor networks and portable electronic devices. This article presents recent breakthroughs in flexible thin-film silicon photovoltaic modules fabricated on polyimide substrates, which demonstrate exceptional performance under indoor lighting conditions. Through optimized plasma-enhanced chemical vapor deposition (PECVD) processes and strategic material engineering, these lightweight, bendable solar modules achieve remarkable 9.1% aperture efficiency at 300 lux illumination while maintaining mechanical robustness through thousands of bending cycles. The technology offers a promising solution for powering the next generation of autonomous electronic devices without battery replacement constraints.

As wearable technology advances from fitness trackers to medical monitors and augmented reality glasses, power autonomy remains the critical bottleneck. Conventional batteries limit device functionality and design freedom, while rigid solar solutions compromise wearability. Enter ultrathin all-perovskite photovoltaic cells – the breakthrough technology enabling truly self-sustaining wearable ecosystems.

The P1, P2, and P3 laser scribing processes each play distinct but interconnected roles in manufacturing high-efficiency thin-film solar cells. P1 establishes the foundational electrical isolation, P2 creates the critical series interconnection between cells, and P3 completes the circuit isolation. Together, these precision processes enable the production of series-connected solar modules with minimized dead areas and maximized active area for power generation. As solar cell technologies continue to advance toward higher efficiencies and thinner layer architectures, the precision and control offered by laser scribing will remain indispensable for commercial viability.

The preparation of perovskite materials is a critical step in achieving high-efficiency perovskite solar cells. At the molecular scale, PbI₂ and CH₃NH₃I can rapidly react through self-assembly to form CH₃NH₃PbI₃. Thus, whether in solid, liquid, or gas phases, thorough mixing of the two raw materials can yield the desired perovskite material. However, for thin-film solar cell light-absorbing layers with thicknesses below 1 μm, the large perovskite crystals produced by solid-phase reaction methods are clearly unsuitable.

Laser etching technology has become indispensable in the precision processing of thin-film materials, particularly in industries such as display manufacturing, photovoltaics, and flexible electronics. Despite its advantages in non-contact processing, digital control, and high precision, several technical challenges persist in the development and application of thin-film laser etching equipment. This article explores these challenges and the innovative solutions driving the industry forward.

With the continuous innovation of MEMS technology, MEMS devices are widely used in consumer electronics, medical equipment, and aerospace applications, offering significant value due to their compact size, high speed, reliability, and low cost. MEMS packaging is a critical step in MEMS device development.